package Collection;

import java.util.ArrayList;
import java.util.Collection;

public class CollectionOperDemo {
    public static void main(String[] args) {
        Collection c1=new ArrayList();
        c1.add("jave");
        c1.add("c++");
        c1.add(".next");
        System.out.println("c1:"+c1);
        Collection c2=new ArrayList();
        c2.add("android");
        c2.add("ios");
        c2.add("java");
//        c2.add("php");
        System.out.println("c2"+c2);

        c1.addAll(c2);
        System.out.println(c1);
        System.out.println(c2);

        Collection c3=new ArrayList();
        c3.add("c++");
        c3.add("android");
        c3.add("php");
        System.out.println("c3"+c3);
        boolean contains =c1.containsAll(c3);
        System.out.println(contains);
        c1.retainAll(c3);
        System.out.println(c1);
        System.out.println(c3);
        c1.removeAll(c3);
        System.out.println(c1);
        System.out.println(c3);

    }
}
